Calcium phosphate glass samples with the addition of 5 mol% of three different rare earth oxides (Erbium, Lanthanum and Cerium oxides) were made by melt quenching process. Effect of rare earth ions addition on structural, physical and optical properties has been investigated using density measurement, XRD diffraction, Fourier transformed infrared (FTIR) spectroscopy, ultra violet visible spectroscopy and Abbe Refractometer. The random short range order of synthesized glass samples was analyzed by XRD diffraction. The absorption spectra have been recorded and optical band gap energy was determined by using Tauc plotting. The band gap energy showed a decrease when 5 mol% of rare earth (Er₂O₃, La₂O₃, and CeO₂) oxides were added to the host glass. Fourier transformed infrared (FTIR) spectrometer was applied to study the structural changes of the synthesized glasses. The density and refractive index of synthesized glasses was measured and related parameters were calculated. These values are compared with the un-doped metaphosphate glass. Based on measured density, the concentrations of added rare-earth ion is calculated. With an increase in ion concentration, the internuclear distance decreased leading to an increase in field strength.

通过熔融淬火工艺制备了添加了5 mol％的三种不同的稀土氧化物（rb，镧和铈的氧化物）的磷酸钙玻璃样品。已使用密度测量，XRD衍射，傅立叶变换红外（FTIR）光谱，紫外可见光谱和阿贝折射仪研究了稀土离子添加对结构，物理和光学性质的影响。通过XRD衍射分析了合成玻璃样品的随机短程有序。已经记录了吸收光谱，并通过Tauc作图确定了光学带隙能量。当稀土（Er ₂ O ₃，La ₂ O ₃和CeO _2）含量为5 mol％时，带隙能量降低。将氧化物添加到主体玻璃中。傅里叶变换红外光谱仪（FTIR）用于研究合成玻璃的结构变化。测量合成玻璃的密度和折射率，并计算相关参数。将这些值与未掺杂的偏磷酸盐玻璃进行比较。根据测得的密度，计算添加的稀土离子的浓度。随着离子浓度的增加，核间距离减小，导致场强增加。